Islamist hackers take French broadcaster TV5Monde off air

French-language TV network TV5Monde was hit by a crippling cyberattack Wednesday that disrupted broadcasting across its channels and also involved the hijacking of its website and social media accounts.

The attack happened at around 10 p.m. Central European Time and given its scale, probably took serious planning by the attackers -- a group that calls itself the Cyber Caliphate. The same group, which claims affiliation to extremist organization ISIS, also hijacked the Twitter accounts of Newsweek, the International Business Times and the U.S. Central Command earlier this year.